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Low power RS-485/RS-422 transceiver

Quantity $ per Unit Savings
1 - 9$1.740%
10 - 24$1.589%
25 - 99$1.4914%
100 - 249$1.2627%
250 - 320$1.2031%
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Parameter NameParameter Value
Operating Temp Min Celsius0.0
Operating Temp Max Celsius70.0
Packing TypeTape And Reel
RoHs compliantEcopack3
Package NameSO-8

The ST485 is al low power transceiver for RS-485 and RS-422 communication. Each part contains one driver and one receiver.

This transceiver draw 300 μA (typ.) of supply current when unloaded or fully loaded with disabled drivers.

It operates from a single 5 V supply.

Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that placed the driver outputs into a high-impedance state.

The ST485 is designed for bi-directional data communications on multipoint bus transmission line (half-duplex applications).

The ST485 is available in three temperature range: commercial (0 °C to 70 °C), industrial (- 40 °C to 85 °C) and automotive (- 55 °C to 125 °C).

Key features
  • Operate from a single 5 V supply
  • 30 ns propagation delay, 5 ns skew
  • Allows up to 64 transceivers on the bus
  • Low quiescent current: 300 μA
  • - 7 V to 12 V common mode input voltage range
  • Designed for RS-485 interface application
  • 70 mV typical input hysteresis
  • Current limiting and thermal shutdown for driver overload protection
  • Driver maintains high impedance in 3-state or with the power OFF